BankAccount, C# - rextester

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/**
   A bank account has a balance that can be changed by 
   deposits and withdrawals.
*/
public class BankAccount : IComparable
{  
   //Overrides the toString method in Object class
   public string ToString()
   {
        return GetType().FullName + "[balance= " + balance + "]";
   }
    
   //Implements the compareTo method in the Comparable interface 
   public int CompareTo (object anObject)
   {
          BankAccount anAccount = (BankAccount) anObject;
          if (Math.abs(balance - anAccount.getBalance()) <= EPSILON) return 0;
          if (balance < anAccount.getBalance()) return -1; 
          return 1;
   }
    
   /**
      Constructs a bank account with a zero balance.
   */
   public BankAccount()
   {  
      balance = 0;
   }

/**
      Constructs a bank account with a given balance.
   */
   public BankAccount(double initialBalance)
   {  
      balance = initialBalance;
   }
 
   /**
      Deposits money into the bank account.
   */
   public void deposit(double amount) 
   {  
      balance = balance + amount;
   }

/**
      Withdraws money from the bank account.
   */
   public void withdraw(double amount) 
   {  
      balance = balance - amount;
   }

public double getBalance()
   {  
      return balance; 
   }
   
   private double balance; 
   final double EPSILON = 1E-14;
}

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